LOS ANGELES (CBS) — Los Angeles police want homeowners with doggy doors to be aware that burglars are getting down on all fours to get into their homes.

The alert was issued for the department’s West Valley Division, which includes homes from Roscoe Boulevard in the north, to Mulholland Drive in the south and from Corbin across to the 405 Freeway.

READ MORE: Melvin Van Peebles, Iconic Actor, Writer & Director Dies At 89

Detectives say burglars have entered at least seven homes by crawling through doggy doors, then dispatch of the dogs by spraying mace on them.

READ MORE: LAX, Metrolink Test Earthquake Early Warning Systems To Shut Down Fuel, Stop Trains Before Shaking Starts

Detectives also say more burglars are entering through second story windows — sometimes using ladders owned by the residents – because they’re usually not wired for alarms.

Some homeowners who do have alarms, simply haven’t been turning them on.

MORE NEWS: Parts Of LA County Increase Water Usage As State Drought Conditions Worsen, Glendale Conserves More

The LAPD has issued an alert this afternoon, about burglars who enter homes using doggy doors.